The best travel itinerary for Budapest, Hungary depends on your personal interests and how much time you have. However, here is a sample itinerary that covers the city's main attractions:

Day 1:

• Arrive in Budapest and check in to your hotel

• Explore the Buda Castle District, including Fisherman's Bastion and Matthias Church

• Take a scenic walk along the Danube Promenade

• Visit the Central Market Hall for a taste of local cuisine

Day 2:

• Take a stroll around Andrassy Avenue, a grand boulevard with museums, restaurants and cafes

• Visit the Hungarian Parliament Building, one of the largest legislative buildings in the world

• Walk to St. Stephen's Basilica, one of Budapest's most recognizable landmarks

• Enjoy a relaxing soak in one of Budapest's famous thermal baths, such as Gellert Baths or Széchenyi Baths

Day 3:

• Explore the Jewish Quarter, including the Great Synagogue, the largest synagogue in Europe

• Visit the Museum of Fine Arts or the Hungarian National Museum for a glimpse into the country's history and art

• Spend the afternoon in the City Park, including a visit to the Budapest Zoo or the Vajdahunyad Castle

• Enjoy a farewell dinner in one of Budapest's traditional Hungarian restaurants.

Note: This is just a sample itinerary and can be adjusted based on your preferences and time constraints.